package com.lostreseditores.sabersai.dataaccess.dao;

import java.util.List;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.hibernate.Query;
import org.hibernate.Session;
import org.hibernate.criterion.Example;

import com.lostreseditores.sabersai.dataaccess.sessionFactory.HibernateSessionFactory;
import com.lostreseditores.sabersai.model.Claseasignatura;


public class ClaseasignaturaDAO implements IClaseasignaturaDAO {
    private static final Log log = LogFactory.getLog(ClaseasignaturaDAO.class);

    // property constants
    //public static final String  CLASASIGDESCRIPT = "clasasigdescript";
    public static final String CLASASIGDESCRIPT = "clasasigdescript";

    //public static final Integer  CLASASIGIDN = "clasasigidn";
    public static final String CLASASIGIDN = "clasasigidn";

    private Session getSession() {
        return HibernateSessionFactory.getSession();
    }

    /**
    *
    * @param Instance
    *            Claseasignatura Instance to persist
    * @throws RuntimeException
    *             when the operation fails
    */
    public void save(Claseasignatura instance) {
        log.debug("saving Claseasignatura instance");

        try {
            getSession().save(instance);
            log.debug("save successful");
        } catch (RuntimeException re) {
            log.error("save failed", re);
            throw re;
        }
    }

    /**
    * @param Instance
    *            Claseasignatura Instance to delete
    * @throws RuntimeException
    *             when the operation fails
    */
    public void delete(Claseasignatura instance) {
        log.debug("deleting Claseasignatura instance");

        try {
            getSession().delete(instance);
            log.debug("delete successful");
        } catch (RuntimeException re) {
            log.error("delete failed", re);
            throw re;
        }
    }

    /**
    *
    * @param Instance
    *            Claseasignatura Instance to update
    * @throws RuntimeException
    *             when the operation fails
    */
    public void update(Claseasignatura instance) {
        log.debug("updating Claseasignatura instance");

        try {
            getSession().update(instance);
            log.debug("update successful");
        } catch (RuntimeException re) {
            log.error("update failed", re);
            throw re;
        }
    }

    public Claseasignatura findById(Integer id) {
        log.debug("finding Claseasignatura instance with id: " + id);

        try {
            Claseasignatura instance = (Claseasignatura) getSession()
                                                             .get(Claseasignatura.class,
                    id);

            return instance;
        } catch (RuntimeException re) {
            log.error("finding Claseasignatura failed", re);
            throw re;
        }
    }

    public List<Claseasignatura> findByExample(Claseasignatura instance) {
        log.debug("finding Claseasignatura instance by example");

        try {
            List results = getSession().createCriteria("Claseasignatura")
                               .add(Example.create(instance)).list();
            log.debug("find by example successful, result size: " +
                results.size());

            return results;
        } catch (RuntimeException re) {
            log.error("find by example failed", re);
            throw re;
        }
    }

    /**
    * Find all  Claseasignatura entities with a specific property value.
    *
    * @param value
    *            the property value to match
    * @param propertyName
    *            the property to search in the instance
    * @return List< Claseasignatura> found by query
        */
    public List<Claseasignatura> findByProperty(String propertyName,
        Object value) {
        log.debug("finding Claseasignatura instance with property: " +
            propertyName + ", value: " + value);

        try {
            String queryString = "from Claseasignatura as model where model." +
                propertyName + "= ?";
            Query queryObject = getSession().createQuery(queryString);
            queryObject.setParameter(0, value);

            return queryObject.list();
        } catch (RuntimeException re) {
            log.error("find by property name failed", re);
            throw re;
        }
    }

    public List<Claseasignatura> findByClasasigdescript(Object clasasigdescript) {
        return findByProperty(CLASASIGDESCRIPT, clasasigdescript);
    }

    public List<Claseasignatura> findByClasasigidn(Object clasasigidn) {
        return findByProperty(CLASASIGIDN, clasasigidn);
    }

    /**
    * Find all Claseasignatura entities.
    *
    * @return List<Claseasignatura> all Claseasignatura instances
    */
    public List<Claseasignatura> findAll() {
        log.debug("finding all Claseasignatura instances");

        try {
            String queryString = "from Claseasignatura";
            Query queryObject = getSession().createQuery(queryString);

            return queryObject.list();
        } catch (RuntimeException re) {
            log.error("find all failed", re);
            throw re;
        }
    }

    public List<Claseasignatura> findByCriteria(String whereCondition) {
        log.debug("finding Claseasignatura " + whereCondition);

        try {
            String where = ((whereCondition == null) ||
                (whereCondition.length() == 0)) ? "" : ("where " +
                whereCondition);
            final String queryString = "select model from Claseasignatura model " +
                where;
            Query query = getSession().createQuery(queryString);
            List<Claseasignatura> entitiesList = query.list();

            return entitiesList;
        } catch (RuntimeException re) {
            log.error("find By Criteria in Claseasignatura failed", re);
            throw re;
        }
    }

    public List<Claseasignatura> findPageClaseasignatura(
        String sortColumnName, boolean sortAscending, int startRow,
        int maxResults) {
        log.debug("finding Claseasignatura findPageClaseasignatura");

        if ((sortColumnName != null) && (sortColumnName.length() > 0)) {
            try {
                String queryString = "select model from Claseasignatura model order by model." +
                    sortColumnName + " " + (sortAscending ? "asc" : "desc");

                return getSession().createQuery(queryString)
                           .setFirstResult(startRow).setMaxResults(maxResults)
                           .list();
            } catch (RuntimeException re) {
                throw re;
            }
        } else {
            try {
                String queryString = "select model from Claseasignatura model";

                return getSession().createQuery(queryString)
                           .setFirstResult(startRow).setMaxResults(maxResults)
                           .list();
            } catch (RuntimeException re) {
                throw re;
            }
        }
    }

    public Long findTotalNumberClaseasignatura() {
        log.debug("finding Claseasignatura count");

        try {
            String queryString = "select count(*) from Claseasignatura model";
            Query queryObject = getSession().createQuery(queryString);

            return (Long) queryObject.list().get(0);
        } catch (RuntimeException re) {
            throw re;
        }
    }
}
